North
Date TimeNO2O3SO2COPM10PM2.5
2021-09-22 19:0027.935.20.8454.48.13.5
2021-09-22 18:0014.851.50.6445.57.34.4
2021-09-22 17:0016.950.40.4382.79.02.4
2021-09-22 16:0017.746.60.4429.39.93.7
2021-09-22 15:0019.739.90.6403.48.23.9
2021-09-22 14:0012.353.00.5387.35.91.3
2021-09-22 13:0010.154.70.6373.14.01.1
2021-09-22 12:0017.645.80.9625.13.51.3
2021-09-22 11:0017.935.21.1533.55.22.0
2021-09-22 10:0016.129.01.1566.810.83.1
2021-09-22 09:0022.120.71.2471.915.46.8
2021-09-22 08:0029.04.42.1781.017.69.6
2021-09-22 07:0022.22.61.6725.020.914.2
2021-09-22 06:0022.72.01.3724.923.214.9
2021-09-22 05:0027.42.11.3744.824.212.1
2021-09-22 04:0029.12.01.7871.022.812.0
2021-09-22 03:0034.22.21.8906.822.110.0
2021-09-22 02:0043.22.01.6992.427.111.3
2021-09-22 01:0045.32.11.51,015.528.315.9
2021-09-22 00:0048.92.42.51,153.025.219.4
2021-09-21 23:0053.12.33.21,151.724.519.4
2021-09-21 22:0057.52.92.81,301.121.114.5
2021-09-21 21:0049.15.32.4982.218.412.4
2021-09-21 20:0050.55.42.0777.515.512.5
Remarks:

(1) Time shown is in Hong Kong time.

(2) NO2 - nitrogen dioxide, O3 - ozone,
     SO2 - sulphur dioxide, CO - carbon monoxide,
     PM10 - respirable suspended particulates,
     PM2.5 - fine suspended particulates

(3) Concentration shown is in µg/m3.

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.

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Last revision date: 19:07 22-09-2021